Bioinformatics is at a crossroads. We work in a field that is changing
every day, increasingly moving from specific solutions created by single
researchers working alone or in small groups to larger, often
geographically dispersed programs enabled by collaborative computing
and open software. This book represents an important development, giving
the reader an opportunity to discover how the use of open and reusable
Java code can solve large bioinformatics problems in a software
engineered and robust way.

All the code examples in this book are coded as Java applets so that they
can be used with Java-enabled Web browsers and published on the Web. At
the time of this writing, the current release of Java is release 1.1.5 with
version 1.2 just appearing as a developer release. Java versions 1.1 and later
add many new features, such as a completely new event model, but many
Web browsers have yet to fully incorporate these new features. Therefore,
the applets in this book are coded to be compatible with the earlier Java
1.0.2 standard so that they work with the widest variety of web browser....

Introduction to java programming: Chapter 30 - MVC and Swing MVC Component's Objectives is to use the model-view-controller approach to separate data and logic from the presentation of data; implement the model-view-controller components using the JavaBeans event model; use JSpinner to scroll the next and previous values.

Asmentioned in the introduction, the information associatedwith an event is
represented by a data structure called a notiﬁcation.We refer to the datamodel
or encoding schema of notiﬁcations as the event notiﬁcation model or simply
event model. Most existing event notiﬁcation services adopt a simple record-
like structure for notiﬁcations, while some more recent frameworks deﬁne an
object-oriented model (e.g., the Java™ Distributed Event Speciﬁcation [Sun
Microsystems 1998] and the CORBA Notiﬁcation Service [Object Management
Group 1998b]).

This book is for every Java web developer, regardless of his or her level of expertise.
It is designed primarily for intermediate to advanced developers, who understand
the specifics of the various web APIs in Java but haven’t yet mastered the best
way to apply them. It is perfect for developers who have heard terms like Model-
View-Controller and Model 2, but weren’t present for the series of events that led
to the widespread adoption of these best practices.

Messaging systems based on queuing include products such as Microsoft’s MSMQ [28]and
IBM’s MQSeries [29]. The queuing model with their store-and-forward mechanisms come into
play where the sender of the message expects someone to handle the message while imposing
asynchronous communication and guaranteed delivery constraints. A widely used standard
in messaging is the Message Passing Interface Standard (MPI) [21]. MPI is designed for
high performance on both massively parallel machines and workstation clusters.

In this section, we illustrate three problems that utilize event-driven programming. The first is the design of a simple GUI interface. The second is a Java applet, and the third involves the design of an interactive game using the Model-View-Controller (MVC) design pattern.

icket is an open source, component-oriented (POJOs-based), lightweight Java web application development framework that brings the Java Swing event-based programming model to web development. Wicket pages can be mocked up, previewed, and later revised using standard WYSIWYG HTML design tools.
Wicket provides stateful components, thereby improving productivity. It has an architecture and rich component suite that aims to bring back the object orientation and, more importantly, the fun that is missing from the Java web development space. With the impending 1.